I suppose it depends on what you consider "yech". What are you considering "yech"? For example,
Toll House chips: SUGAR, PALM KERNEL OIL, MILK, NONFAT MILK, 2% OR LESS OF HYDROGENATED PALM OIL, SOY LECITHIN, BUTTER, CARAMEL COLOR, NATURAL FLAVOR, ARTIFICIAL FLAVOR, SUNFLOWER LECITHIN, PAPRIKA OLEORESIN (FOR COLOR), ACETIC ACID.
Guitard chips: Cane sugar, palm kernel and palm oils, whey, nonfat milk, added color, sunflower lecithin, vanilla and natural flavor. No synthetic colors or flavors. No hydrogenated oils.
Another supplier who doesn't actually make their products: Sugar, palm kernel oil, powdered whey protein concentrate, soy lecithin, sorbitan tristearate, artificial colors (yellow #5 & 6 lake, Blue 1 lake), artificial butterscotch flavor, and vanilla.
https://www.heavenlyhomemakers.com/homemade-butterscotch-baking-chips
I suppose it depends on what you consider "yech". What are you considering "yech"? For example,
Toll House chips: SUGAR, PALM KERNEL OIL, MILK, NONFAT MILK, 2% OR LESS OF HYDROGENATED PALM OIL, SOY LECITHIN, BUTTER, CARAMEL COLOR, NATURAL FLAVOR, ARTIFICIAL FLAVOR, SUNFLOWER LECITHIN, PAPRIKA OLEORESIN (FOR COLOR), ACETIC ACID.
Guitard chips: Cane sugar, palm kernel and palm oils, whey, nonfat milk, added color, sunflower lecithin, vanilla and natural flavor. No synthetic colors or flavors. No hydrogenated oils.
Another supplier who doesn't actually make their products: Sugar, palm kernel oil, powdered whey protein concentrate, soy lecithin, sorbitan tristearate, artificial colors (yellow #5 & 6 lake, Blue 1 lake), artificial butterscotch flavor, and vanilla.
https://www.halfscratched.com/homemade-butterscotch-chips/#mv-creation-626-jtr
the link you point to has 4 ingredients . most of the other recipes I've stumbled on have 4 - 6.
should pretty much be brown butter, cream, extract, and sugar(s).
no palm oil, artificial this, lecithin, coloring.
Says it never hardens. I’d try it but only if you will be happy using it as a sauce instead if it doesn’t harden up.